New records of nudibranchs and a cephalaspid from Kuwait, northwestern Arabian Gulf (Mollusca, Heterobranchia) Author Nithyanandan, Manickam https://orcid.org/0000-0003-0582-8344 Ecosystem Based Management of Marine Resources, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P. O. Box. 1638, Salmiya 22017, Kuwait nandan.ocean@gmail.com Author Al-Kandari, Manal https://orcid.org/0000-0003-0073-7929 Ecosystem Based Management of Marine Resources, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P. O. Box. 1638, Salmiya 22017, Kuwait Author Mantha, Gopikrishna https://orcid.org/0000-0002-7200-5105 Ecosystem Based Management of Marine Resources, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P. O. Box. 1638, Salmiya 22017, Kuwait text ZooKeys 2021 2021-07-13 1048 91 107 http://dx.doi.org/10.3897/zookeys.1048.66250 journal article http://dx.doi.org/10.3897/zookeys.1048.66250 1313-2970-1048-91 8437650994504B55AFABD7414079B51D 8F66AFC800D45491BC9D5813B128DAA5 Goniobranchus sp. 2 Figure 5 Photographic record. Failaka Island, 22 December 2014, one individual found in rocks in sandy mud intertidal areas at the lowest tide mark, Dr. Valeriy Skryabin. Description. The individual has a white translucent body with dark red / purple spots scattered over the dorsum; a few of the dark red / purple spots have a tubercle-like projection in the middle giving a conical impression (Fig. 5 , arrowed). A scattered row of spots extends around the margin of the mantle and the foot. Rhinophores are translucent with white lamellae. Gills are also translucent with a white midrib. The edge of the mantle has a submarginal bright yellow band and an interior ring of opaque white glands. Figure 5. Goniobranchus sp. 2 (arrows indicate tubercle-like projections in the dark red/purple spots which give the impression of a conical projection). Photograph Dr. Valeriy Skryabin. Scale bar: 1 mm. Distribution. Kuwait (this study). Remarks. The individual recorded has a submarginal ring of translucent white glands just inside the prominent bright orange band similar to G. tumuliferus (Collingwood, 1881; see also Gosliner et al. 2015 : 229). However, in G. tumuliferus the rhinophores and tentacles have opaque white tips ( Gosliner et al. 2015 ; Mehrotra et al. 2021 ), which was not observed in the individual recorded during this study. The translucent white glands with dark red / purple spots interrupting the bright orange band is a character combination of what has been observed in Goniobranchus kitae Gosliner, 1994 from Madagascar and G. bimaensis (Bergh, 1905) from the Indo-West Pacific. Probably an undescribed species.